Bone Tissue Explants
Bone Tissue Explants - Related Videos
07:45
Explant Culture of Neural Tissue
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2023
The intricate structure of the vertebrate nervous system arises from a complex series of events involving cell differentiation, cell migration, and changes in cell morphology. Studying these processes is essential to our understanding of nervous system function as well as our ability to diagnose and treat disorders that result from abnormal development. However, neural tissues are relatively inaccessible for experimental manipulations, especially in embryonic mammals. As a result, many...
10:57
Using In Vivo and Tissue and Cell Explant Approaches to Study the Morphogenesis and Pathogenesis of the Embryonic and Perinatal Aorta
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2017
Protocols for studying the embryonic and perinatal murine aorta using in vivo clonal analysis and fate mapping, aortic explants, and isolated smooth muscle cells are detailed here. These diverse approaches facilitate the investigation of the morphogenesis of the embryonic and perinatal aorta in normal development and the pathogenesis in disease.
01:30
Bone Cells and Tissue
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2023
Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts. Osteoblasts and Osteocytes The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the periosteum and...
01:17
Hormones and Bone Tissue
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2023
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it. Hormones That Influence Osteoblasts and/or Maintain the Matrix Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
06:25
Explant Culture for Developmental Studies
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2023
Explant culture is a technique in which living cells or tissues are removed from an embryo for continued development outside of the organism. This ex vivo approach allows researchers to manipulate and observe developing tissues in ways that are not possible in vivo. Once established, explant culture is frequently used to understand the role of genes and signaling molecules in organogenesis. This video will first introduce the basic principles of explant culture and demonstrate a protocol to...
FAQs
Native architecture maintains physical relationships among resident bone cells, extracellular matrix, and local signaling pathways. These relationships can influence how cancer cells interact with bone and how tissue responses develop. As a result, the model provides biological context that simplified cell cultures may not reproduce, while remaining more experimentally controlled than a whole-animal study.
Resident bone cells and the extracellular matrix remain active components of the cultured tissue and contribute to the local signaling environment. Their continued interaction gives introduced cancer cells access to tissue-specific cues that may affect tumor growth, bone colonization, remodeling, and cancer-associated damage. This helps researchers examine interactions rather than studying cancer cells in isolation.
The preserved tissue context allows researchers to examine several related outcomes in the same experimental setting, including tumor growth, colonization of bone, remodeling, and tissue damage associated with cancer. Because the explant retains active bone components and signaling pathways, observed responses can be interpreted within a bone environment rather than through cancer-cell behavior alone.
Bone tissue explants occupy an intermediate position between the two approaches. They retain aspects of native architecture and cellular interactions that simplified cultures lack, yet they can be maintained under controlled laboratory conditions without the full complexity of a whole organism. This balance supports focused studies of cancer-bone mechanisms and preliminary evaluation of therapeutic agents.
Successful maintenance requires appropriate nutrients and controlled environmental conditions so resident bone cells, extracellular matrix, and signaling pathways remain active. These conditions are essential because the model's usefulness depends on preserving tissue function after isolation. Researchers can then introduce cancer cells or therapeutic agents and examine responses within a maintained bone environment.
Researchers would select this approach when they need to study cancer behavior in bone while retaining more physiological tissue context than a simplified culture provides. The model can be used to investigate tumor growth, bone colonization, remodeling, and cancer-associated damage, as well as to assess therapeutic agents before advancing questions to whole-animal studies.